CVE-2024-27412

Service interruption via nonexistent IRQ free

Published May 17, 2024 · Updated May 23, 2026

Improper IRQ handling in affected Linux kernel releases allows local users to interrupt service by unbinding a bq27xxx I2C device. bq27xxx_battery_i2c_remove() calls free_irq() unconditionally when client->irq is zero because the probe registered no interrupt. The affected driver must be bound to an I2C client without an IRQ, and unbinding it produces an already-free IRQ warning and kernel backtrace.

CVSS severity5.5
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper IRQ handling in affected Linux kernel releases allows local users to interrupt service by unbinding a bq27xxx I2C device. bq27xxx_battery_i2c_remove() calls free_irq() unconditionally when client->irq is zero because the probe registered no interrupt. The affected driver must be bound to an I2C client without an IRQ, and unbinding it produces an already-free IRQ warning and kernel backtrace.

The record

CVE
CVE-2024-27412
Published
May 17, 2024
Updated
May 23, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 2024CVE publishedPublication date reported by the CVE source.
  2. May 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1da9a4b55a6688e3a30c16d0cf2e7c6a90a684fb <d7acc4a569f5f4513120c85ea2b9f04909b7490f
  2. Affected versionversion=28960625adaaf3fa3d83c8d3596661d2576d0a83
  3. Affected versionversion=4.14.316 <4.15
  4. Affected versionversion=4.19.284 <4.19.309
  5. Affected versionversion=444ff00734f3878cd54ddd1ed5e2e6dbea9326d5 <083686474e7c97b0f8b66df37fcb64e432e8b771
  6. Affected versionversion=444ff00734f3878cd54ddd1ed5e2e6dbea9326d5 <2df70149e73e79783bcbc7db4fa51ecef0e2022c
  7. Affected versionversion=444ff00734f3878cd54ddd1ed5e2e6dbea9326d5 <fbca8bae1ba79d443a58781b45e92a73a24ac8f8
  8. Affected versionversion=5.10.181 <5.10.212
  9. Affected versionversion=5.15.114 <5.15.151
  10. Affected versionversion=5.4.244 <5.4.271
  11. Affected versionversion=6.1.31 <6.1.81
  12. Affected versionversion=6.3.5 <6.4
  13. Affected versionversion=6.4
  14. Affected versionversion=76d2ed844def0cb8704d766924b07b2a918b3e30 <d4d813c0a14d6bf52d810a55db06a2e7e3d98eaa
  15. Affected versionversion=ca4a2ddd2e69ca82ca5992d4c49649b2cbac3b74
  16. Affected versionversion=dafe9136be7b7fc30f1f3ca410c15b7cc65bee44 <7394abc8926adee6a817bab10797e0adc898af77
  17. Affected versionversion=e01820a94aea99296e500f54b3f36a2985061045 <e601ae81910ce6a3797876e190a2d8ef6cf828bc
  18. Affected versionversion=e65fee45687fa2109e03056a696dc7d68a151296 <cefe18e9ec84f8fe3e198ccebb815cc996eb9797

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=1da9a4b55a6688e3a30c16d0cf2e7c6a90a684fb <d7acc4a569f5f4513120c85ea2b9f04909b7490f; version=28960625adaaf3fa3d83c8d3596661d2576d0a83; version=4.14.316 <4.15; version=4.19.284 <4.19.309; version=444ff00734f3878cd54ddd1ed5e2e6dbea9326d5 <083686474e7c97b0f8b66df37fcb64e432e8b771; version=444ff00734f3878cd54ddd1ed5e2e6dbea9326d5 <2df70149e73e79783bcbc7db4fa51ecef0e2022c; version=444ff00734f3878cd54ddd1ed5e2e6dbea9326d5 <fbca8bae1ba79d443a58781b45e92a73a24ac8f8; version=5.10.181 <5.10.212; version=5.15.114 <5.15.151; version=5.4.244 <5.4.271; version=6.1.31 <6.1.81; version=6.3.5 <6.4; version=6.4; version=76d2ed844def0cb8704d766924b07b2a918b3e30 <d4d813c0a14d6bf52d810a55db06a2e7e3d98eaa; version=ca4a2ddd2e69ca82ca5992d4c49649b2cbac3b74; version=dafe9136be7b7fc30f1f3ca410c15b7cc65bee44 <7394abc8926adee6a817bab10797e0adc898af77; version=e01820a94aea99296e500f54b3f36a2985061045 <e601ae81910ce6a3797876e190a2d8ef6cf828bc; version=e65fee45687fa2109e03056a696dc7d68a151296 <cefe18e9ec84f8fe3e198ccebb815cc996eb9797

Published CVSS scores

5.5CISA ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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